Metal window-sash.



G. A. MOGINNIS.

METAL WINDOW SASH, APPLICATION FILED AUG. 12, 1909.

Patented June 14, 1910.

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CLAUDE A. MCGINNIS, 0F ATLANTA, GEORGIA, 'AssIGNon T0 nowMAN-nozIEn MAivU- FAcrURING COMPANY, OF ATLANTA, GEOB GIA,- A CORPORATION or GEORGIA.

IMIIE'JEALI WINDOW-SASH.

To all whom it may concern:

Be it known that I, CLAUDE A. MCGINNIS, a citizen of'the United States, residing at Atlanta, in the county ofFulton and State of Georgia, have invented certain new and useful Improvements in" Metal Window- Sash, of which the following is a specification, reference being had therein to .the accompanying drawing.

VVhen a sheet metal sash is subjected to high heat there is a very strong tendency'to distortion, and where-glazing strips of ordinary form are employed to hold the glass they often lose their form and swing from the glass so that the window no longer prevents the passage of hot air or flame.

The object of the invention is to provide a glass holding glazing strip which will resist any heat which does not cause breaking down of the metal. With this object in view, the glazing strip is made with a broad base and flange which are protected in arecess or groove in the stile, and is so made and mounted that when heated expansion tends to throw it against the glass instead of away'from it. 1 I

In the accompanying drawings, Figure 1 is a side. elevation of a portion of afsash stile with .the glazing strip in place. Fig.

2 is a section on the line 2-2, Fig. 1. j

- The sash with which this glazing strip is used may bev that shown in my application Ser. No. 490,514, of which this application is a division.

Inthese views, A represents a stile of sheet metal having a planeoflset B against which the glass rests and further having a broad longitudinal groove C running from the offset B nearly to the opposite side of the stile. VVit-hin the groove is placed a hollow glazing strip C formed by bending a metal sheet along parallel lines. The glazing strip consists of a single piece and it has 1 a web D parallel to the offset B and at a distance therefrom equal to the thickness of the glass, and, upon the opposite side is folded to'form a rib F which fits against the outer side of the groove and projects to the bottom thereof. At soine distance from the bottom of the groovethe base web Gr extends across to meet the web D, and the two margins are extended over the margin or edge of the glass and areinterlocked but Specification of Letters Patent. Patented J 11119 14:, 1910.

Original application filed April 17, 1909, Serial No. 490.51'4. Ilivided and this application filed August 12;

Serial No. 512,473. v

' still kept above the bottom .of the groove.

The glazin strip is held in place by bolts H passing t rough the glazing strip parallel to'the glass and engaging nuts I fixed within the stile by rivets J or other suitable de vices.

If heat be applied to the glazing strip, .its rib and base are protected by the stile and the glass as well as the outer wall of the glazing strip,-and hence resist heat and maintain their shape and position. At the same time, the expansion of the more exposed-portion of the glazing strip tends to rotate it about the free margin of the rib and to throw it more firmly against the glass, which .is of course wire glass.

What I claim is: 3

1. A'hollow sheet metal glazing strip hav ing at the outer margin of that side which is to rest against the stile a longitudinal rib adapted to hold the body .of the base out of contact with the stile. substantially as set forth.

2. A hollow sheet metal glazing striphaving upon the face next the stile and at some distance from the glass a portion projecting beyond all parts nearer the. glass which might otherwise meet the stile; whereby expansion of the strip, being resisted by the stile tends to rock the strip toward the glass.

3. The combination with a metal sash, of a glass-retaining strip provided upon that side next the body of the sash and atsome distance from the margin which is to 'meet the glass with a projection to rest against said body, and strip securing devices between said projection and margin.'

4. The combination with a sheet metal sash provided with a plane offset to support one side of the glass and 'with a. groove parallel to the glass, of a hollow glazing strip lying in said groove fitting closely against its outer side and extending over the edge of the glass, and bolts passing through the glazing strip parallel to the CLAUDE A. MCGINNIS.

Witnesses:

W. J. CowAN, FAIR Donn. 

